DUBAI/BEIRUT (Reuters) – Supreme Leader Ayatollah Ali Khamenei denounced the heated rhetoric of Iran’s presidential election campaign on Wednesday as “unworthy”, a thinly-veiled rebuke of pragmatist President Hassan Rouhani’s attacks on his main conservative challenger. The withdrawal of other conservative candidates has turned Friday’s election into an unexpectedly tight two-horse race between Rouhani, 68, and hardline cleric Ebrahim Raisi, a 56-year-old protege of the supreme leader. Khamenei’s intervention could help sway the vote by signaling dissatisfaction with Rouhani’s conduct.